Radiation-hard/high-speed parallel optical links
Abstract
We have designed and fabricated a compact parallel optical engine for transmitting data at 5 Gb/s. The device consists of a 4-channel ASIC driving a VCSEL (Vertical Cavity Surface Emitting Laser) array in an optical package. The ASIC is designed using only core transistors in a 65 nm CMOS process to enhance the radiation-hardness. The ASIC contains an 8-bit DAC to control the bias and modulation currents of the individual channels in the VCSEL array. The performance of the optical engine up at 5 Gb/s is satisfactory.
- Publication:
-
Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- September 2016
- DOI:
- 10.1016/j.nima.2016.03.032
- Bibcode:
- 2016NIMPA.831..246G
- Keywords:
-
- HL-LHC;
- Optical-link;
- VCSEL array driver;
- Radiation-hard